爱码博阁

各软件安装和配置环境变量部分省略

一、准备springboot项目

项目结构（这里演示简单的helloword项目）

1、因为是war包方式，需要将springboot自带的tomcat排除

pom.xml中修改：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <!--忽略内嵌tomcat，打包部署到tomcat。注*本地运行的时候要把这一段忽略引入个注释掉，要不然项目启动不了-->
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
    </exclusions>
</dependency>

并且需要导入servlet依赖

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
</dependency>

默认为jar包方式

要指定war包

<packaging>war</packaging>

2、须修改启动配置

在项目启动类同路径下创建启动配置类

package com.laoxu.hello;

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

/**
 * @author wang.hz
 * @Date 2018/7/4
 * <p>解决springboot打成war包，部署tomcat后访问404问题</p>
 */
public class BackendInTomcatApplication extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(HelloApplication.class);
    }

}

3、demo演示功能：输出：hello world

package com.laoxu.hello.controller;


import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloWorldController {
    @RequestMapping("/hello")
    public String hello(){
        return "Hello world";
    }
}

二、上传代码到gitlab

三、配置tomcat

添加管理账户

tomcat下的conf目录下有个tomcat-users.xml

在</tomcat-users>上面添加账户

<role rolename="tomcat"/>
<role rolename="role1"/>
<role rolename="manager-script"/>
<role rolename="manager-gui"/>
<role rolename="manager-status"/>
<role rolename="admin-gui"/>
<role rolename="admin-script"/>
<user username="tomcat" password="tomcat" roles="manager-gui,manager-script,tomcat,admin-gui,admin-script"/>